George eage



\ @teiten tats gatwt @fitr-e.

IMPROVEMENT IN tienne-Jaen.

@La intitule referat tu tu ttm fritets jzttmt mit mating pnt Oi tige sana.

4TO ALL WI'IOM IT MAY CONCEItN:

Be it lgnown that I, GEORGE RACE, of the town of Norwiclnrin the county of' Chcnango, in the Sta-te oi' New York, have invented certain new and useful Improvements in Lifting-Jacks; and the following is a full; clear, and exact (inscription of thesame, reference being had to the accon'ipanying drawings, making a part of this specification, in which.

Figure 1 represents a plan or top view of the lifting-jack.-

Figure 2 shows a side elevation of the same.

The object otlniy invention is to malte an easy-operating lifting-jack for wagons and for other purposes, which consists in the arrangement and combination ol" an inclined lever andeccentric, with anadjustable ievellingolock for `varying the height, Snc.

To enable others skilled-in the artto make and use my invention, I will describe it more fully, referring to the drawings, and 4to the letters marked thereon. Y

I support the'piece of timbcrA on fourl posts, B d3, of suitable strength, and the required height for the purpose .it is designed the posts B B being secured to thc inclined timber A with a single bolt or rivet, a a, through the whole, the postebeing'sliiorhtly notched on to the main timber A, leaving:r the space between them a ti'ile narrower than the timber in which the movable lever C is pivoted at the lowest or forward end, so as to move up or down between th-erear posts B', which have a cap, Z2, Over the top connect-ing them together, the

movable lever being made tapering, and is placed on an incline so that it inay be accommodated to various heightsfor which it is to be used. In the top of the tapering 'lever Cthere are a series of holes, ce c, to which an adjustable block, D, is attached by steady-pins e e, eo that its position can be changed to any place on the lever C, the block D being so shaped as to be nearly level on the top where the axle or other substance rests to be lifted. The lever C is provided with an eccentric, E, and a hand-lever, F, bywhieh the operation of lifting is eieeted, it having the power of a compound lever, the eccentric E being placed in the end of the tapering lever C', convenient to be operated by the hand-lever F on the right side of the main' timber A, which extends out bythe'posts B sufficient to form the handle Gr, by which the jack is placed up te its work; and in order that it may be handled easily, there is a truck roller,- H, placed between the bottom. ends of the forward posts, on which it is supported to be trnndled about and placed in any `desired position. I

It will readily be seen that 'there are many advantages by my improvement for a wagon-jack over. Amany now in use. The operator can place the jack, and raise-any vehicle, without comingiso near to it as to endanger the soiling of clothes; the power of the eccentric at the end of the taper lever being so great as to be almost irresistible, so that very7 little strength is required. I A i i Having thus fully described my invention, what I claim as new, and desire lto secure by Letters Pat-ent, is-

1. rlhe eccentric, operated by a hand-lever, in combination with the inclined tapering lever and adjustable levelling-block, substantially as and for the purposes herein .set forth.

2. I claim the arrangement of the movable block D, as secured to the taper lcvcrC, for regulating the height of the jack, to Operate in the manner herein described.

` GEORGE RACE.

Witness'ee:

J. B. WOODRUFF, Enix. F. Bnowx. 

